Knotter for mattress-tufting machines.



PATENTED MAY 8, 1906 R. R. THOMPSON.

KNOTTBR FOR MATTRESS TUFTING MACHINES.

APKLIUATICN YXLED 001129. 1901.

i8 SHEBTS'-SHEET1 j/Iin eacs e wa 2 PATENTBD MAY 8, 1906.

R. R. THOMPSON.

KNOTTER FOR MATTRESS TUFTING MACHINES.

APPLICATION FILED 0CT.29,19D1.

l8 SBBETS--SHEET 2.

PATENTEDMAY 8, 1906.

R. R. THOMPSON.

KNOTTER FOR MATTRESS TUFTING MACHINES.

APTLIGAHGN FILED 001229. 1901.

No. 819,953. PATENTED MAY 8, 19% R. R. THDMPSOE.

KNOTTER FOR MATTRESS TUFTING MACHINES.

APPLIQATION FILED 00129. 1901) 1a SHEETS-SHEET 4.

III-Ilia Y I 1. a! g 3.

5 2 J min 6 a I 1 xmwxfi w fi f j a AF Y L 1 a a F fl PATENTBD MAY 8, 1906 nS 8HBEIS-SHLE 6 air [5 ffll i i M V r n r 1 E a n g Q H 1 l w i rm 1HWMMMMWJ J f v r ufii it:

w W v l 0, LL t 52 7o 8. 3 3? 1 6 1 a e eddddd eve va/m f 1 H. R. THOMPSON, KNOTTBR FOR MATTRESS TUFTING MACHINES.

V APPLICATION FILED OUT. 29 1961' PATENT'ED MAY 8, 1905 R. R. THOMPSON.

KNOTTER FOR MATTRESS TEFTING MACHINES.

APPLIUATIUN FILED 001%. 1901.

18 SEBETS SHEBT 6 9. r I), t

J/Zinzamzah J r PATENTED MAY. 8, 1906 B. R. THOMPSON. KNOTTBR FOR MATTRESS TUFTmG MACHINES.

APPLXOATIGR FILED OG'JIKQQ 1991.

EATBNTED MAYB, 1906 R. R. THOMPSON.

KNDTTER FOR MATTRESS TUPTING MACHINES.

AIPLIGATION FILED 001229. 1901.

18 SHEBTS-SHBT 8 fig/1 No. 819,953. PATERTEE) MAY 8, 1906. B. R. THOMPSON.

KNOTTER- P OR MATTRESS TUFTING MACHINES.

AFPLEEATifiH FiLED OUT. 29, 1901.

13 SHEETSSHEBT 9.

PATENTED MAY 8,1906.

R. R. THOMPSON.

KNUTTER FOR MATTRESS TUPTING MAGHHQES,

APPLIUATIGH FILED 00129, 1901.

18 SHEETSSHEET 12 P'ATENTBD MAY a, 1906.

, R. R. THOMPSON. KNOTTER FOR MATTRESS TUPTING MACHINES.

APPLICATION FILED 001229, 1901.

18 SHEETS-SHEET 13.

PATENTED MAY 8, 1906 R. R. THOMPSON. KNOTTBR FOR MATTRESS TUFTING MACHINES.

APPLIOATIOK FILED 001229 1901.

13 SHEETS-HIST 1i,

PATENTED MAY a, 1906 R. R. THOMPSON. KNOT'IBR FOR MATTRESS TUFTING MACHINES.

APPLICATION FILED OUT. 29. 1901.

18 SHEETS-SHEET 16 PATEITED MAY 8, 1906 R. R. THOMPSON.

KNOTTER FOR MATTRESS TUFTING MACHINES.

APPLICATION FILED 0GT.29. 190

18 SEBBT8-SHBET I? PATENTED MAY 8 1906 R. R. THOMPSON. KNOTTER FOR MATTRESS TUFTING MACHINES.

1B SHEETS-SHEET l8 APPLIGATION FILED 0GT.29.1801.

UNITED STATES PATENT OFFICE.

ROBERT R. THOMPSON, OF BOSTON, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGNMENTS. TO UNITED MATTRESS MAUHlNERY COM PANY, A CORPORATION OF MAINE.

KNo-rTEo FOR MATTHES-S-TUFTING MACHINES.

Specification of Letters Patent.

Patented w. 1-906.

Original cpplicatlon filed September 24. 1990. Serial No. 80,913. Divided and this application filed October 29, 1901. Serial 130- 80,884.

To all whom it may concern.-

- Be it known that I, Roesa'r R. 'lnonrsou,

a citizen of the United States of America, residing at Boston, in the county of Suffolk and State-of Massachusetts, have invented certain new and useful Improvements in Knotters for Mattress-Tufting Machines and other Uses, of which the following is a specification.

My invention relates to certain improve: ments in knotters. designed especially with reference to their use in a. mattress-tufting machine, but which are capable of use in other mechanisms of various sorts.

One of the main objects of the invention is to tie a knot without necessitating any slack tain novel characteristics, which will be clearly defined in the claims. v

. In the'drewin Figure 1 is a plan view of the machine witg a pert of the trscks broken away to ermit the view to be as large as possible upo the sheet. Fi 2 is a viewpartly in side elevation and part l in vertical crosssection, the line of section sing taken at 2 2 of Fig. 1 and the view'being in the direction of the arrow 2 in said figure. 3 is en enlarged side view of the upper an lower compressor-heads. Fig. 4 is a front view of the.

parts shown in Fi 3, the view being in the direction indicat by the arrow 4 in Fig. 3. Fig. 5 is acentml vertical section of the upper compressor-head; the line of section being taken at 5 5 in Figs. 1 and 4 and looking in the direction of the arrow 5. Fig. 6 is a view similer to Fig. 5, but showing the tube for rotating the knotter in side elevation and the operating ports of the machine in a position at which 1;

the upper compressor-head with the compressor-tube part1 broken away, the view sing in the direction indiceted'by the arrow 7 in Fig. 4. Fig. 8 is a view similar to Fig. 7,

e compressors have reached their limit of compression. Fig. 7 is a. side view of showing the operating arts in the same position as that shown in 6. Fig. 9 is a central vertical section through the upper comresser-head showing the manner in which the machine is threaded, the line of section being indicated at 9 9 in Figs. 1 and 68 and the direction by the arrow 9. Fig. 10 is an enlarged detail vertical section of the up or part of the compressor-tube, the section 0- ing taken in the line 5 5 of Fig. 4. Fig. 11 is a detail front elevation of the up r portion oi the upper compressor-head, s owin the devices for actuating one of the twine-ho ders, the position of the parts being. the some as that shown in Figs. 6 and 8. Fig. 12 is a View,

partly in front elevation and partly in verticel section, of a. part of theirame, compressor-tnhe; certain plungers in the lower compressor-tube, and certain camsactuating said plungers, the line of section being indicated at 12 12 in Fig. 3-. Fig. 13 is s. VleW similar to Fig. 12 with the lower compressor-tube also in section and showing the o crating parts in the same position as that s own in ig. 6,8, and 11. ig. 14 is a view similar to Fig. 13,. showing the operatinp parts in the position occupied just as the oop has been thrown. Fig. 15 is a. front view of a portion of the compressor-tubes and coaotingparts, showing the same in the same pos tion as that shown in Figs. 6, 8, II, and 13. Fig. is is a similar view with the needles at their lowest position. Fig. 17 illustrates the sinus parts at a point where the tube for operating the knotter has become enga. ed to rotate and wrap the knot. Fig. 18 1 lustrates the same parts at s point where the knot has been wrapped and Fig. 19 is a detail vertical section of a portion oi the lower compressor-head, taken in the line 19 19 in Figs. 1,21, and 22 and looking in the direction indicated by the arrow 19,

the needles having reached their lowest 0- sition, be a poslticn corresponding to that partially pulled tight.

shown in 1 16. Fig. 20 is a view similar to Fig. 19 with the operatin parts in a. osition corresponding to thatsliown in Fig 14.

of the'lower compressor-tube Fig. 22 is a.

-IO O Fig. 21 is a'detail end view of the upper end I detail horizontal section in li1ie 22 22 of Fig i 19. Fig. 23 is a view similar to Figs. 19 and 20, showing theloop-throwing pin or in the position after it has dropped and rewn the end of the cord through the eye of one of the needles. Fig. 24 is a view showing the neodles as having reached a point immediately above the cutting-plate and the twine cut off to the roper length. Fig. 25 is a side view of the head of the loop-guiding plunger, the view being indicated by the arrow 25 in Fig. 27. Fig. 26 is a detail vertical cross-section through the upper portion of the lower comressor-hearl at right an les to that shown in igs. 19, 20, 23, and 24, t eline of section being taken at 26 26 in Fig. 23. Fig. 27 is a detail horizontal section in line 27 27 of Fig. 26. Fig. 28 is a detail horizontal section in line 28 28 of Figs. 3, 5, and 7. Fig. 29 is a detail .horizontal section of the lower end of the up per compressor, taken in line 29 29 of Figs. 33 and 36, showin the twine-holder and devices for actuating t e same. Fig. 30 is a similar view, but showing the parts in a different position-viz., that when the end of the twine has been released from the holder. Fig. 31 is a detail horizontal section taken in line 31 31 of Fi s. 33 and 36, showing a tensions ring. ig. 32 is an under plan of a tension b ock. Fig. 33 is a detail vertical cross-section in line 33 33 of Figs. 29 and 36. Fi 34 is a detail side elevation of the twine-ho der, its sup orting-plates, and the knife-carrying disk, t c direction of the view being indicated by the arrow 34 in Fig. 37. Fig. 35 is a view of the same arts, taken at right angles to that seen in Fig. 34 and in the direction indicated by the arrow 35 in Fig. 37. Fig. 36 is a detail vertical cross-section of the lowerend of the upper compressor-tube, the lin qfisection being indicated at 36 36 in Figs. 29., 3 (and 39. Fig. 37 is a detail horizontal section taken in line 37 37 of Fig. 35. Fig. 38 is a detail horizontal section taken at 38 38 in Fig. 36. Fig. 39 is a view similar to Fig. 37, showing the parts in a diflerent position and certain portions broken away to show the knives and disks upon which they cut the twine. Fig. 40 is aperspective view of the knotter. Fig. 41 is a erspective view of the holders upon which t e knot is wrapped and their supporting-disk. Fig. 42 is a perspective view of the knot-wrapper rotated one hundred and eighty degrees. Fig.4.? is a perspective view showing the knot-wrapper rotated about two hundred and fifty deees. Fig. 44 is a view of the parts seen in i .41 showing the twine as it appears when it asbeen wrapped half-wayround. Fig. 45 is a similar view showing the twine when the wrappingo oration has been completed. Fig. 46 is a detai vertical cross-section taken in the line 46 46 of Fig. 49. Fig. 47 is a detail ver tical section taken in the line 47 47 of Fig. 50. Fig. 48 is a detail vertical section in line 48 48 of Fig. 51 with all of the arts removed except the knot-holders and isk, tension tube, and tightener. Fig. 49 is a detail horizontal section in line 49 49 of Fig. 46, showing the knottcr rotated about forty-five de ees and the do s just on aging the twine. *ig. 50 is a simi ar view, )ut showing the knottcr rotated three hundred and sixty degrees and in a position to pass the ends of the cord underneath the knot-holders, certain parts being broken away to show the holders, which would otherwise be hidden from view. Fig.5] is a plan view of the holders and twine-hook after the knot has been wrapped and just before the hook closes the knot. Fig. 52 is a view similar to Fig. 48, showing the knot as having been partly drawn tight. view showing the tension-tube also in section and the knot almost completed. Fig. 54 illustrates the knot in the position seen in Fig. 52. Fig. 55 illustrates the knot in the position seen in Fig. 53. Fig. 56 is an under plan of the knottor. Fig. 57 is a detail vertical cross-section of the same, taken in line 57 57 of Fig. 56. Fig. 58 is a similar view in line 58 58 of Fig. 56. Fi 59 is a detail side elevation of the knotter, Fnife-carrying disk, and a portion of the tube for rotatin the same, tubular Wei ht, and hook-rod. Fig. 60 is a detail vertica cross-section taken in the line 60 60 of Fig. 5. Fig. 61 is a detail front elevation of a portion of the compressor-tube and other tubes within the sarne and showin a dog for limiting the downward movemen;

Fig. 53 is a similar of the compressor-rod. Fig. 62 is a rear view.

of said dog, partly broken away.

side view of said do lookin in the irectib'nof the arrow 63 in Fig.61. horizontal section taken in line 64 64 of Fig. 61. Fig. 65 is a detail perspective view of the knot-mandrel. Fig. 66 is a front view of a portion of the upper head, showing the means for placing the tufts for the upper face of the mattress. Fig. 67 is a side view of the parts seen in Fig. 66, the view being indicated by the arrow 67 in the latter figure. Fig. 68 is a horizontal section taken in line 68 68 of Fig. 66. Fig. 69 is an under plan of the parts seen in Fig. 66.. Fig. 70 is a detail vertical cross-section taken in line 70 70 of Fig. 71. Fig. 71 is a detail horizontal section taken in line 71 71 of Fig. 70. Fig. 72 is a view, partly in side elevation and partly in vertical section, showing the means for placing the tufts for the lower face of the mattress, the line being indicated at 72 72 in Fig. 3. Fig. 73 is a plan view of the parts seen in Fig. 72. Fig. 74 is a perspective view of the lower tuft-reservoir. Fig. '75 is'a side view of the parts seen in Fig. 73, the tuftplacing fin er bein cut away in line 75 75 of the latter 1 ure. section in t e line 76 16 of Figs. 73 and 75. Fig. 77 is a vertical crosssection through the lower tuft-reservoir, taken in line 77 77 of Fig. 73 and showing the tuft-plunger in relaig. 64 is adetail if i 7 ig. 76 is a vertical crosstion thereto and in side elevation; and Fig. 78 

